So......Wanting to run a scenario past all the lovely mummies out there and get some opinions

It's a bit of a tricky one.......

It's time for Miss5's kinder pick up and Miss2 falls asleep 1/2 hour earlier.
Miss2 usually sleeps for at least 2 hours during the day and kinder pickup only takes 5-10mins max.
Miss2 super exhusted from being woken up 2 hours early that morning by her sister.

What would you do?